ENERGY-LOSS SPECTRA AND PLASMON DISPERSIONS IN ALKALI-METALS - NEGATIVE PLASMON DISPERSION IN CS

被引：83

作者：

ARYASETIAWAN, F ^{[1
]}

KARLSSON, K ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.73.1679

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present ab initio calculations of the energy loss spectra and plasmon dispersions of the alkali metals Na, K, Rb, and Cs within the random phase approximation, including band structure effects and core electrons as well as local field effects, due to inhomogeneity in the induced charge density. Band structure effects an found to cause a negative dispersion in Cs.

引用

页码：1679 / 1682

页数：4

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